I have always wanted a small backyard pond to grow amazing water plants, some goldfish and attract wildlife. My son bought me a kit with a 15' x 15' liner with skimmer and falls filter, etc. It is already late in the year, but I want to build it before winter and plant/stock it in spring next year. Most of the hobby ponds that I see are intended to look natural but they do not. I am considering a geometric modern design with square pavers as coping and some kind of modern artsy waterfall rather than trying to fake a natural look. Also can I somehow fuse another small liner to give me a bit of a run from the waterfall filter to the pond?